Here is what Nebuchadnezzar said in his own words:
4:34 "But at the end of that period, I, Nebuchadnezzar, raised my eyes toward heaven and my reason returned to me, and I blessed the Most High and praised and honored Him who lives forever; For His dominion is an everlasting dominion, And His kingdom endures from generation to generation. 4:35 "All the inhabitants of the earth are accounted as nothing, But He does according to His will in the host of heaven And among the inhabitants of earth; And no one can ward off His hand Or say to Him, "What have You done?' 4:36 "At that time my reason returned to me. And my majesty and splendor were restored to me for the glory of my kingdom, and my counselors and my nobles began seeking me out; so I was reestablished in my sovereignty, and surpassing greatness was added to me. 4:37 "Now I, Nebuchadnezzar, praise, exalt and honor the King of heaven, for all His works are true and His ways just, and He is able to humble those who walk in pride.'' 5
5:30 That same night Belshazzar the Chaldean king was slain. 5:31 So Darius the Mede received the kingdom at about the age of sixty-two.
And the conclusion of the matter, the Holy One of Israel is sovereign over all the affairs of man.